Conor McGregor made an incredible donation to a family with a very sick child as he prepares for the biggest fight of his career.

The Notorious donated €10,000 to Grainne McCullough for the care of her son Bryan, nicknamed Bru.

Last September Bru, 5, went into septic shock and was left on life support requiring dialysis, blood transfusions and platelets.

The incredible donation

After 11 weeks in the hospital ward, Grainne took her son home to Drogheda, Co Louth in December 2017.

Grainne said: "He cannot walk and is fed through a tube, he has the nasal tube since September.

"I’m trying to get money to get him to a private consultant who will look after him medically and fit the tube in his belly."

Grainne set up a Gofundme page in the hope of raising €10,000 for her son's care but couldn't believe when UFC star Conor McGregor donated this week.

She told Dublin Live: "Conor has made our dreams come true in so many ways, and I can verify it wasn’t for a publicity stunt, he privately donated to us, I just had to let him know how much we appreciate it."

He said: "Best wishes and hopes for a speedy recovery for Bru. From Conor, Dee and family."

The money will help Bru get the care he needs to make a recovery from his illness.